Electrica signature analysis (ESA) uses the magnetic field in the air gap of an electrical machine to evaluate power quality conditions. Dry and oil transofrmer types are subject to problems ...

Power transformers are one of the most critical and expensive assets in electric transmission and distribution. An in-service transformer failure can have far-reaching consequences: extended outages, ...

Transformer oil has long served two purposes, cooling and insulating. The large, steel encased transformers we see connected to the electrical grid are filled with transformer oil which is circulated ...

HOUSTON, Jan. 6, 2026 /PRNewswire/ -- RESA Power, LLC ("RESA Power" or the "Company"), a market leader in power systems electrical testing, transformer services, and life extension solutions for power ...

Transformer oil, also referred to as insulating oil, is stable at high temperatures while offering superb electrical insulating properties. Water impacts the insulation’s dielectric properties as well ...

Part 1 of this three-part series laid out an overview of a proposal to create a numerical health index and establish a practical program for power transformer maintenance. Part 2 breaks down each of ...